https://www.metoffice.gov.uk/forecast/static/77d9ca403b26a4ee51290a45bea6850b/js/common/common.js

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8$jscomp.polyfill("String.prototype.at",function(a){return a?a:$jscomp.atMethod},"es_next","es5");window.metoffice=window.metoffice||{};window.googletag=window.googletag||{cmd:[]};window.Criteo=window.Criteo||{};window.Criteo.events=window.Criteo.events||[];window.metoffice.advertisingTargeting=window.metoffice.advertisingTargeting||{};
9window.metoffice.advertising={originalScreenWidth:null,requiredSlots:{},sizeMappings:{bottom:[{viewport:[1360,240],slot:[[728,90],[970,90],[970,250]]},{viewport:[1280,240],slot:[[728,90],[970,90]]},{viewport:[960,240],slot:[[728,90]]},{viewport:[728,240],slot:[[320,50],[728,90]]},{viewport:[320,240],slot:[[320,50]]},{viewport:[1,1],slot:[]}],bottomWarnings:[{viewport:[1360,240],slot:[[728,90],[970,90],[970,250]]},{viewport:[1280,240],slot:[[728,90],[970,90]]},{viewport:[1,1],slot:[]}],top:[{viewport:[970,
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14window.addEventListener("DOMContentLoaded",()=>{window.metoffice.advertising.originalScreenWidth=window.innerWidth});window.addEventListener("DOMContentLoaded",()=>{const a=new IntersectionObserver((b,c)=>{b.forEach(d=>{d.isIntersecting&&(d.target.classList.remove("lazybg"),c.unobserve(d.target))})});document.querySelectorAll(".lazybg").forEach(b=>a.observe(b))});window.metoffice=window.metoffice||{};
15window.metoffice.storage={getItem(a){var b=this.getCookies()[a];return b&&(b=window.atob(b),JSON.parse(b))?b:window.localStorage.getItem(a)},getBase64Item(a){try{return JSON.parse(window.atob(document.cookie.split("; ").filter(b=>b.includes(a))[0].split("\x3d")[1]))}catch(b){return null}},getCookies(){return document.cookie.split("; ").reduce((a,b)=>{const [c,d]=b.split("\x3d");a[c]=d;return a},{})},setItem(a,b){this.setCookie(a,b,365)},setCookie(a,b,c){const d=window.metoffice.forecasts.config.topLevelDomain;
16b=window.btoa(JSON.stringify(b));const e=new Date;e.setTime(e.getTime()+c*24*60*60*1E3);c=`expires=${e.toUTCString()}`;window.document.cookie=`${a}=${b}; ${c}; ${`domain=.${d}`}; path=/;`}};
17window.metoffice.hash={getParamMapFromHash:()=>{var a=window.location.hash;a=a.startsWith("#?")?a.substring(2).split("\x26"):[];return new Map(a.map(b=>{b=b.split("\x3d");return[b[0],b[1]]}))},getHashParameter:a=>window.metoffice.hash.getParamMapFromHash().get(a),setHashFromMap:(a,b=!0)=>{a=Array.from(a.entries()).map(c=>c.join("\x3d")).join("\x26");window.history.replaceState(null,null,`#?${a}`);b&&window.dispatchEvent(new Event("hashchange"))},replaceHashParameter:(a,b,c=!0)=>{const d=window.metoffice.hash.getParamMapFromHash();
18d.set(a,b);window.metoffice.hash.setHashFromMap(d,c)},deleteHashParameter:(a,b=!0)=>{const c=window.metoffice.hash.getParamMapFromHash();c.delete(a);window.metoffice.hash.setHashFromMap(c,b)}};"use strict";
19const bodyScrollLock={disableBodyScroll:()=>{document.body.classList.add("has-dialog")},enableBodyScroll:()=>{document.body.classList.remove("has-dialog")}},aria={KeyCode:{ESC:27},Utils:{IgnoreUtilFocusChanges:!1,isFocusable(a){if(a.tabIndex>0||a.tabIndex===0&&a.getAttribute("tabIndex")!==null)return!0;if(a.disabled)return!1;switch(a.nodeName){case "A":return!!a.href;case "INPUT":return a.type!=="hidden"&&a.type!=="file";case "BUTTON":case "SELECT":case "TEXTAREA":return!0;default:return!1}},remove(a){a?.remove()},
20focusFirstDescendant(a){for(const b of a.childNodes)if(aria.Utils.attemptFocus(b)||aria.Utils.focusFirstDescendant(b))return!0;return!1},focusLastDescendant(a){for(let b=a.childNodes.length-1;b>=0;b--){const c=a.childNodes[b];if(aria.Utils.attemptFocus(c)||aria.Utils.focusLastDescendant(c))return!0}return!1},attemptFocus(a){if(!aria.Utils.isFocusable(a))return!1;aria.Utils.IgnoreUtilFocusChanges=!0;try{a.focus()}catch{}aria.Utils.IgnoreUtilFocusChanges=!1;return document.activeElement===a}},OpenDialogList:[],
21getCurrentDialog:()=>{if(aria.OpenDialogList?.length)return aria.OpenDialogList.at(-1)},closeCurrentDialog:()=>{const a=aria.getCurrentDialog();if(!a)return!1;a.close();return!0},handleEscape:a=>{(a.which||a.keyCode)===aria.KeyCode.ESC&&aria.closeCurrentDialog()&&a.stopPropagation()}};document.addEventListener("keyup",aria.handleEscape);
22aria.Dialog=function(a,b,c){this.dialogNode=document.getElementById(a);if(this.dialogNode===null)throw Error(`No element found with id="${a}".`);const d=new Set(["dialog","alertdialog"]);if(!(this.dialogNode.getAttribute("role")||"").trim().split(/\s+/g).some(e=>d.has(e)))throw Error("Dialog() requires a DOM element with ARIA role of dialog or alertdialog.");this.dialogNode.parentNode.classList.contains("dialog-backdrop")?this.backdropNode=this.dialogNode.parentNode:(this.backdropNode=document.createElement("div"),
23this.backdropNode.className="dialog-backdrop",this.dialogNode.parentNode.insertBefore(this.backdropNode,this.dialogNode),this.backdropNode.appendChild(this.dialogNode));this.backdropNode.classList.add("active");bodyScrollLock.disableBodyScroll(this.backdropNode);if(typeof b==="string")this.focusAfterClosed=document.getElementById(b);else if(typeof b==="object")this.focusAfterClosed=b;else throw new TypeError("the focusAfterClosed parameter is required for the aria.Dialog constructor.");this.focusFirst=

24typeof c==="string"?document.getElementById(c):typeof c==="object"?c:null;a=document.createElement("div");this.preNode=this.dialogNode.parentNode.insertBefore(a,this.dialogNode);this.preNode.tabIndex=0;a=document.createElement("div");this.postNode=this.dialogNode.parentNode.insertBefore(a,this.dialogNode.nextSibling);this.postNode.tabIndex=0;aria.OpenDialogList.length>0&&aria.getCurrentDialog().removeListeners();this.addListeners();aria.OpenDialogList.push(this);this.dialogNode.className="default_dialog";
25this.focusFirst?this.focusFirst.focus():aria.Utils.focusFirstDescendant(this.dialogNode);this.lastFocus=document.activeElement};aria.Dialog.prototype.clearDialog=function(){for(const a of this.dialogNode.querySelectorAll("input"))a.value=""};
26aria.Dialog.prototype.close=function(){aria.OpenDialogList.pop();this.removeListeners();this.preNode.remove();this.postNode.remove();this.dialogNode.className="hidden";this.backdropNode.classList.remove("active");this.focusAfterClosed.focus();aria.OpenDialogList.length>0?aria.getCurrentDialog().addListeners():bodyScrollLock.enableBodyScroll(this.backdropNode)};
27aria.Dialog.prototype.replace=function(a,b,c){aria.OpenDialogList.pop();this.removeListeners();this.preNode.remove();this.postNode.remove();this.dialogNode.className="hidden";this.backdropNode.classList.remove("active");new aria.Dialog(a,b||this.focusAfterClosed,c)};aria.Dialog.prototype.addListeners=function(){document.addEventListener("focus",this.trapFocus,!0)};aria.Dialog.prototype.removeListeners=function(){document.removeEventListener("focus",this.trapFocus,!0)};
28aria.Dialog.prototype.trapFocus=function(a){if(!aria.Utils.IgnoreUtilFocusChanges){var b=aria.getCurrentDialog();b.dialogNode.contains(a.target)?b.lastFocus=a.target:(aria.Utils.focusFirstDescendant(b.dialogNode),b.lastFocus===document.activeElement&&aria.Utils.focusLastDescendant(b.dialogNode),b.lastFocus=document.activeElement)}};globalThis.openDialog=(a,b,c)=>{new aria.Dialog(a,b,c)};globalThis.closeDialog=a=>{const b=aria.getCurrentDialog();b.dialogNode.contains(a)&&b.close()};
29globalThis.replaceDialog=(a,b,c)=>{const d=aria.getCurrentDialog();d.dialogNode.contains(document.activeElement)&&d.replace(a,b,c)};globalThis.metoffice=globalThis.metoffice||{};
30globalThis.metoffice.infoModal={currentScrollX:0,currentScrollY:0,init(a){a.currentTarget.removeEventListener(a.type,globalThis.metoffice.infoModal.init);a=document.getElementsByClassName("info-modal-anchor");if(a.length!==0)for(const b of a){a=b.hash.substring(1);const c=document.getElementById(a);if(c!=null&&!c.dataset.initalized){c.dataset.initalized="";c.classList.add("hidden");c.setAttribute("role","dialog");const d=document.createElement("span");d.classList.add("icon");d.dataset.type="global";
31d.dataset.value="close";const e=document.createElement("button");e.classList.add("close-button");e.addEventListener("click",globalThis.metoffice.infoModal.closeModal);e.appendChild(d);e.id=`${a}CloseButton`;c.appendChild(e);globalThis.metoffice.infoModal.observer.observe(c,{attributeOldValue:!0,attributes:!0,childList:!1,subtree:!1})}b.onclick=globalThis.metoffice.infoModal.openModal}},closeModal(){globalThis.closeDialog(this)},openModal(a){const b=a.currentTarget.hash.substring(1);globalThis.metoffice.infoModal.currentScrollY=
32globalThis.pageYOffset;globalThis.metoffice.infoModal.currentScrollX=globalThis.pageXOffset;globalThis.openDialog(b,a.currentTarget,`${b}CloseButton`);return!1},observer:new MutationObserver(a=>{for(const b of a)b.type==="attributes"&&b.oldValue==="default_dialog"&&b.target.className==="hidden"&&globalThis.scroll(globalThis.metoffice.infoModal.currentScrollX,globalThis.metoffice.infoModal.currentScrollY)})};globalThis.addEventListener("DOMContentLoaded",globalThis.metoffice.infoModal.init);"use strict";
33const menuTabClicked=a=>{const b=a.target,c=document.querySelector(".menu-tab-panel"),d=document.querySelector(`#${a.target.getAttribute("aria-controls")}`);if(!d.classList.contains("hidden"))return d.classList.add("hidden"),c.classList.add("hidden"),b.classList.remove("opened"),!1;if(d.querySelectorAll("ul \x3e *").length===0)return!0;c.classList.remove("hidden");

33document.querySelectorAll(".menu-tab-panel \x3e * ").forEach(e=>{e.classList.add("hidden")});d.classList.remove("hidden");document.querySelectorAll(".lower-menu-items li a.opened").forEach(e=>
34{e.classList.remove("opened")});b.classList.add("opened");window.dataLayer.push({event:"navExpand",navMenuItem:a.target.innerText});return!1};document.querySelectorAll(".menu-panel ul li a").forEach(a=>{a.addEventListener("click",b=>{window.dataLayer.push({event:"superNavClick",superNavMenuItem:b.target.innerText})})});document.querySelectorAll(".menu-tab").forEach(a=>{a.onclick=menuTabClicked});
35document.addEventListener("click",a=>{a.target.closest(".lower-menu, .menu-tab-panel")==null&&(document.querySelectorAll(".lower-menu-items li a.opened").forEach(b=>{b.classList.remove("opened")}),document.querySelectorAll(".menu-tab-panel, .menu-tab-panel \x3e *").forEach(b=>{b.classList.add("hidden")}))});
36const openSearch=()=>{document.querySelectorAll(".lower-container, .lower-menu-container-large").forEach(a=>{a.setAttribute("data-search","true")});document.querySelector(".nav-control").classList.add("hidden");document.querySelector(".lower-menu-container-large #site-search-input-large-screen").focus()},searchButton=document.querySelector(".nav-search");searchButton.onclick=openSearch;searchButton.addEventListener("keydown",a=>{a.key==="Enter"&&(a.preventDefault(),openSearch())});
37const searchInputs=document.querySelectorAll(".site-search-input");searchInputs.forEach(a=>{a.addEventListener("blur",()=>{const b=a.value;searchInputs.forEach(c=>{c.value=b})})});const closeSearch=()=>{document.querySelectorAll(".lower-container, .lower-menu-container-large").forEach(a=>{a.setAttribute("data-search","false")});document.querySelector(".nav-control").classList.remove("hidden")},closeSearchButton=document.querySelector(".lower-menu-container-large #close-search-button");
38closeSearchButton.onclick=closeSearch;closeSearchButton.addEventListener("keydown",a=>{a.key==="Enter"&&(a.preventDefault(),closeSearch(),document.querySelector("#search-button").focus())});const openMenu=()=>{const a=document.querySelector(".lower");a.classList.contains("full-screen")?(a.classList.remove("full-screen"),document.body.style.overflow=""):(a.classList.add("full-screen"),document.body.style.overflow="hidden")};
39document.querySelectorAll(".menu-button").forEach(a=>{a.onclick=()=>{openMenu()};a.addEventListener("keydown",b=>{if(b.key==="Enter"||b.key===" ")b.preventDefault(),openMenu(),document.querySelector("#close-menu-button").focus()})});const menuHeaders=document.querySelectorAll(".menu-container-full-screen .menu-header");
40menuHeaders.forEach(a=>{a.parentElement.querySelectorAll("ul").length>=1&&(a.getElementsByClassName("menu-link-arrow")[0].style.display="block",a.onclick=b=>{b.preventDefault();b=a.parentElement;const c=b.classList.contains("selected");document.querySelectorAll(".menu-container-full-screen").forEach(d=>{d.classList.remove("selected")});c||b.classList.add("selected")})});const backButton=document.querySelector(".third-level-back");
41backButton.addEventListener("keydown",a=>{a.key==="Enter"||a.key===" "?backButton.click():a.key!=="Tab"||a.shiftKey||(a.preventDefault(),document.querySelector(".menu-container-full-screen.selected li.open .third-level li:first-child a").focus())});document.querySelectorAll(".menu-container-full-screen li .third-level li:last-child a").forEach(a=>{a.addEventListener("keydown",b=>{b.key!=="Tab"||b.shiftKey||(b.preventDefault(),document.querySelector("#close-menu-button").focus())})});
42document.querySelectorAll(".menu-container-full-screen li .third-level li:first-child a").forEach(a=>{a.addEventListener("keydown",b=>{b.key==="Tab"&&b.shiftKey&&(b.preventDefault(),document.querySelector("#third-level-back").focus())})});
43document.querySelector("#close-menu-button").addEventListener("keydown",a=>{a.key==="Tab"&&a.shiftKey?(a.preventDefault(),a=document.querySelector(".third-level-back.open")!==null,document.querySelector(a?".menu-container-full-screen li.open .third-level li:last-child a":".google-play").focus()):a.key==="Enter"&&document.querySelector("#menu-button").focus()});
44document.querySelector("#close-menu-button").addEventListener("click",()=>{document.querySelectorAll(".menu-container-full-screen li.open").forEach(a=>a.classList.remove("open"))});document.querySelector(".google-play").addEventListener("keydown",a=>{a.key!=="Tab"||a.shiftKey||(a.preventDefault(),document.querySelector("#close-menu-button").focus())});const closeAllThirdLevel=()=>{document.querySelectorAll(".menu-container-full-screen ul li.open").forEach(a=>{a.classList.remove("open");backButton.classList.remove("open")})};
45document.querySelectorAll(".menu-container-full-screen ul li").forEach(a=>{a.onclick=b=>{b.target.closest(".third-level")===null&&a.querySelector(".third-level")!==null&&(b.preventDefault(),closeAllThirdLevel(),backButton.classList.add("open"),a.classList.add("open"))}});
46document.querySelectorAll("a.skip-link").forEach(a=>{a.addEventListener("click",b=>{b.preventDefault();b=window.metoffice.hash.getParamMapFromHash();window.location.hash=a.getAttribute("href");b&&window.metoffice.hash.setHashFromMap(b,!1)})});backButton.onclick=closeAllThirdLevel;"use strict";globalThis.metoffice=globalThis.metoffice||{};
47globalThis.metoffice.createScrollableTable=function(a){const b=document.getElementById(a.contentId);var c={},d=null,e=null;const h={get content(){return b},get dayOffsets(){return c},get nextActiveDayTable(){return e},set nextActiveDayTable(f){e=f},tableFocused:function(f){e&&(e!==f.target&&e.focus(),e=null)},showHideScrollButtons:function(){const f=document.getElementById("btnScrollLeft"),g=document.getElementById("btnScrollRight");b&&f&&g&&(f.classList.toggle("hidden",b.scrollLeft===0),g.classList.toggle("hidden",
48Math.round(b.scrollLeft+b.clientWidth)>=b.scrollWidth))},addScrollButtonEvents:function(){let f=null,g=!1;const k=()=>{document.querySelectorAll(".scroll-button-container").forEach(m=>{g&&m.classList.add("opacityhide")})},l=function(m){m&&(g=!0);document.querySelectorAll(".scroll-button-container").forEach(q=>q.classList.remove("opacityhide"));f!=null&&(clearTimeout(f),f=null);f=setTimeout(k,2E3)};b&&b.addEventListener("scroll",()=>l(!0));globalThis.addEventListener("scroll",()=>l(!1));const n=document.getElementById("btnScrollLeft"),
49p=document.getElementById("btnScrollRight");n&&b&&n.addEventListener("click",function(){l(!0);b.scrollBy({left:-(b.clientWidth*.75),behavior:"smooth"})});p&&b&&p.addEventListener("click",function(){l(!0);b.scrollBy({left:b.clientWidth*.75,behavior:"smooth"})})},windowResized:function(){h.calculateScrollPositions();d&&b&&(b.scrollLeft=d*b.scrollWidth)},calculateScrollPositions:function(){var f=document.getElementsByClassName(a.dayClass);if(b)for(const g of f)f=g.offsetLeft-b.offsetLeft+g.offsetWidth-
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